1115533117 has 2 divisors, whose sum is σ = 1115533118. Its totient is φ = 1115533116.

The previous prime is 1115533033. The next prime is 1115533121. The reversal of 1115533117 is 7113355111.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1033558201 + 81974916 = 32149^2 + 9054^2 .

It is a cyclic number.

It is not a de Polignac number, because 1115533117 - 2²⁷ = 981315389 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1115533717) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 557766558 + 557766559.

It is an arithmetic number, because the mean of its divisors is an integer number (557766559).

Almost surely, 2^1115533117 is an apocalyptic number.

It is an amenable number.

1115533117 is a deficient number, since it is larger than the sum of its proper divisors (1).

1115533117 is an equidigital number, since it uses as much as digits as its factorization.

1115533117 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1575, while the sum is 28.

The square root of 1115533117 is about 33399.5975574557. The cubic root of 1115533117 is about 1037.1163699373.

Adding to 1115533117 its reverse (7113355111), we get a palindrome (8228888228).

The spelling of 1115533117 in words is "one billion, one hundred fifteen million, five hundred thirty-three thousand, one hundred seventeen".